Olajuwon was highly skilled as both an offensive and defensive player. On defense, his rare combination of quickness and strength allowed him to guard a wide range of players effectively. He was noted for both his outstanding shot-blocking ability and his unique talent (for a frontcourt player) for stealing the ball. Olajuwon is the only player in NBA history to record more than 200 blocks and 200 steals in the same season. He averaged 3.09 blocks and 1.75 steals per game for his career.He is the only center to rank among the top ten all time in steals. Olajuwon was also an outstanding rebounder, with a career average of 11.1 rebounds per game. He led the NBA in rebounding twice, during the 1989 and 1990 seasons. He was twice named the NBA Defensive Player of the Year, and was a five-time NBA All-Defensive First Team selection.